Marketing reporter Susan Krashinsky joins Hannah Sung to discuss advertising campaigns that are devised as practical jokes. Lululemon, WestJet and YouTube are among the companies using April Fools' Day to inject personality into their brands

Marketing reporter Susan Krashinsky joins Hannah Sung to discuss advertising campaigns that are devised as practical jokes. Lululemon, WestJet and YouTube are among the companies using April Fools' Day to inject personality into their brands